South Gray

South Gray is an earth dam located in Larimer County, Colorado, built in 1976. It carries a Low hazard potential classification and has a satisfactory condition assessment.

About South Gray

The primary purpose of South Gray is irrigation. The dam stores and diverts water for agricultural irrigation, supporting farming operations in the surrounding area. The dam is owned by Lake Canal Reservoir Company (harris, Rosanna) (private). It impounds the Boxelder Cr-tr near Windsor.

The dam stands 24 feet tall and stretches 2,676 feet across, creates a reservoir covering 77 acres, and has a maximum storage capacity of 1,193 acre-feet. Completed in 1976, the structure is 50 years old.

This dam has a low hazard potential classification, meaning that failure would cause minimal damage, limited primarily to the dam owner's property, with no expected loss of life. Its condition is rated satisfactory, indicating no existing or potential dam safety deficiencies are recognized. An emergency action plan is in place for this dam. The most recent inspection on record was 06/26/2017.

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Low HazardSatisfactory ConditionEmergency Action Plan: Yes

Location

StateColorado
CountyLarimer
Nearest CityWindsor
River/StreamBoxelder Cr-tr
Coordinates40.61340, -104.98551

Physical Characteristics

Dam TypeEarth
NID Height24 ft
Dam Height24 ft
Dam Length2,676 ft
Year Completed1976 (50 years old)

Storage & Hydraulics

NID Storage1,193 acre-ft
Max Storage1,193 acre-ft
Normal Storage885 acre-ft
Surface Area77 acres
Max Discharge1,950 cfs
Spillway TypeControlled

Ownership & Safety

PurposeIrrigation
OwnerLAKE CANAL RESERVOIR COMPANY (HARRIS, ROSANNA)
Owner TypePrivate
Hazard ClassificationLow
Condition AssessmentSatisfactory
Last Inspection06/26/2017
Emergency Action PlanYes

Identifiers

NID IDCO00849
Federal IDCO00849
More InfoState Dam Safety Program

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